- cool mind
- coon
- coop
- cooptation
- coordinate clause
- copulation
- copy left
- coracle
- cordial one
- coriander
- corker
- corn
- corn circle
- corn pone
- cornice
- corrosive
- corrugated
- cosily
- cosmetic
- cosmogony
- cottage industry
- couch
- counseller
- count on, count upon
- countdown
- counter march
- countless
- country-craft
- country-greens
- countryman, countrywoman
- county
- coup de foudre
- coverlet
- covert
- covert place
- covertures
- coy
- coyote
- coz
- cozen
- cps
- cradle
- craftsman, craftswoman
- crampon
- cranefly
- creamery
- crease
- create
- creativity
- creator
- creature
- creature neither male or female
- creditor
- creek
- criminal code
- crimped
- cringe
- crinkum-crankum
- crisis
- critical spirit
- criticism
- critique
- crocodile tears
- cross-examine
- crossbones
- crossing
- crossing bounds
- cry someone down, cry something down
- crying over spilt milk
- cryptology
- cube
- cubic
- cultivators
- cultured
- cunning
- cunning fellow
- cupids arrow
- curmurring
- current events
- curry-leaf tree
- cursive
- cursoriness
- curt
- curtail step
- curtain lecture
- cuscus
- cuscus plant
- cut someone off, cut something off
- cut someone out, cut something out
- cuticle
- cypher
- cant
- case
- catching
- cavalry
- centralize
- clairvoyance
- cleft
- close
- club